Date: Mon, 29 Jun 2020 14:59:29 -0400 From: Aryeh Friedman <aryeh.friedman@gmail.com> To: Michael Osipov <1983-01-06@gmx.net> Cc: freebsd-java@freebsd.org Subject: Re: Min. ports needed for headless AWT/Swing Message-ID: <CAGBxaXkpFimZFOX8WpkZvip9T%2BTnUt6sxg9jv2YsMzU2vjfBBw@mail.gmail.com> In-Reply-To: <417840b4-1acc-ac20-2127-0754bce1fd68@gmx.net> References: <CAGBxaXnf=Q0Df403nRpsCVudiN56KD=rKxGtbjQAHePVoDnEFA@mail.gmail.com> <417840b4-1acc-ac20-2127-0754bce1fd68@gmx.net>
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On Mon, Jun 29, 2020 at 2:28 PM Michael Osipov <1983-01-06@gmx.net> wrote: > Am 2020-06-29 um 17:43 schrieb Aryeh Friedman: > > I have a java application that works fine with setenv DISPLAY :0.0 on my > > desktop FreeBSD 12.1 (amd64) [with Xfce4] but when I attempt to run the > > same app on a VM that has the minimum ports needed to install OpenJDK 8 > and > > Tomcat I get an exception saying that it can't connect to the X server > even > > though I did setenv DISPLAY desktop:0.0 (and xhost + on the desktop). > > Note it is the same user on both machines (NIS/NFS password DB/home dirs) > > doing the running on both machines but is a different user then the one > > logged in at the console (I do all my development in a separate account) > > Are you look for "-Djava.awt.headless=true"? > Since this is a screen capture/recording program (which I am the developer) I need to be able to capture the console (running X) that I am currently on. So the question is what is the minimum set of ports/packages I need to install on the VM to make it see and X server? It should be noted the program has no GUI but does use java.awt.Robot#createScreenCapture (using the full screen resolution as it's bounds) individual frames of the longer video. Here is the specific exception I am attempting to fix: On desktop (192.168.11.20) % xhost + On VM (192.168.11.4): % setenv DISPLAY 192.168.11.20:0.0 % java -javaagent:/usr/local/share/java/classes/jacocoagent.jar=destfile=/usr/home/aryeh/fnwe-scap-1a1.C036/jacoco.exec,jmx=true,excludes=thistest/*:test/* -cp /usr/home/aryeh/fnwe-scap-1a1.C036/scrap/www/WEB-INF/lib/fnwe-scap-1a1.jar:/usr/local/share/java/classes/thisTest.jar:/usr/local/share/java/classes/pcCommon.jar:/usr/local/share/java/classes/pcUtil.jar test.TestMain Result of the jvm invocation on the VM (not it works no problem su(do)'ing to another account on the desktop if I do setenv DISPLAY :0.0): Caused by: java.awt.AWTError: Can't connect to X11 window server using '192.168.11.20:0.0' as the value of the DISPLAY variable. at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method) at sun.awt.X11GraphicsEnvironment.access$200(X11GraphicsEnvironment.java:65) at sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:115) at java.security.AccessController.doPrivileged(Native Method) at sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:74) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at java.awt.GraphicsEnvironment.createGE(GraphicsEnvironment.java:103) at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:82) at test.scap.TestVideoFrame.testCaptureFrame(TestVideoFrame.java:76) _______________________________________________ > freebsd-java@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-java > To unsubscribe, send any mail to "freebsd-java-unsubscribe@freebsd.org" > -- Aryeh M. Friedman, Lead Developer, http://www.PetiteCloud.org
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